Noise suppression device

ABSTRACT

A noise suppression device includes a housing having a chamber, a tube mounted in the chamber of the housing, a mineral layer mounted in the chamber of the housing, an absorbing layer mounted in the tube, a cylinder mounted in the absorbing layer, and a cover mounted on an opened end of the housing to close the housing. Thus, the noise suppression device has an excellent grounding effect by provision of the cylinder which is made of copper, so that when the noise suppression device is connected with the sound, the sound is grounded and can release the induced charges produced by various radiation and electromagnetic induction. In addition, the voltage noise produced in the acoustic signals of the sound is oscillated in the noise suppression device, so as to achieve the purpose of eliminating the voltage noise.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a suppression device and, moreparticularly, to a noise suppression device to eliminate noise (orglitch) produced in an electric appliance, such as a sound and the like.

2. Description of the Related Art

An electric appliance, such as a sound, television, monitor, videoplayer and the like, includes an electrical signal cable to execute thepurpose of transmission and indication. The electrical signal cable iseasily affected by various noises, such as a grounding circuit noise, anelectromagnetic radiation interference noise, and a power supplyinterference noise. Concerning the grounding circuit noise, the soundsystem needs a greater grounding effect (the grounding resistance has tobe smaller than four ohms) to release the induced charges produced byvarious radiation and electromagnetic induction, to prevent the voltagenoise from overlapping the acoustic signals. Concerning theelectromagnetic radiation interference noise, the environmentalelectromagnetic wave interference (such as the high frequencyelectromagnetic radiation interference from the cell phone) is mixedwith the transmission signal through the acoustic transmission cable toform a noise. Concerning the power supply interference noise, differentfacilities, such as optical regulating devices, air-conditioningdevices, motors and the like, merge at the common electrical grid toproduce peak impulses, surge currents and voltages of differentfrequency in the power line, which will pass through the power line intothe power supply of the sound, thereby forming a noise in the sound. Forsolving the above-mentioned noise problems, the power line is processedby a special shelter treatment to eliminate the electronic radiationinterference efficiently. The facilities with serious magnetic leakageare enclosed by an iron cabinet to eliminate the magnetic radiation. Apurified alternating power supply can efficiently filter and eliminatethe interference signals in the power line.

BRIEF SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a noisesuppression device having an excellent grounding effect to release theinduced charges produced by the sound.

In accordance with the present invention, there is provided a noisesuppression device comprising a housing having an interior provided witha chamber, a tube mounted in the chamber of the housing, a mineral layermounted in the chamber of the housing, an absorbing layer mounted in thetube, a cylinder mounted in the absorbing layer, and a cover mounted onan opened end of the housing to close the housing. The cylinder has anouter periphery provided with an electroplated layer. The cylinder hasan end provided with a connecting portion. The absorbing layer ismounted on the outer periphery of the cylinder. The tube is mounted onan outer periphery of the absorbing layer. The chamber of the housing ismounted on an outer periphery of the tube. The cover is provided with anopening connected to the connecting portion of the cylinder.

Preferably, the cylinder has a side provided with at least one fixingportion connected to the connecting portion.

Preferably, the cylinder is made of copper.

Preferably, the electroplated layer of the cylinder is made of silver.

Preferably, the absorbing layer is made of absorbent material thatabsorbs and prevents high-frequency and low-frequency waves.

Preferably, the tube is made of aluminum.

Preferably, the chamber of the housing has a peripheral wall providedwith a plurality of arcuate channels surrounding and abutting the outerperiphery of the tube to fix the tube.

Preferably, the housing has an outer periphery provided with an antiskidlayer.

According to the primary advantage of the present invention, the noisesuppression device has an excellent grounding effect by provision of thecylinder which is made of copper, so that when the noise suppressiondevice is connected with the sound, the sound is grounded and candischarge and release the induced charges produced by various radiationand electromagnetic induction.

According to another advantage of the present invention, the absorbinglayer absorbs high-frequency and low-frequency waves, while the minerallayer is located between the housing and the tube, so that the voltagenoise produced in the acoustic signals of the sound is oscillated in thenoise suppression device, so as to achieve the purpose of eliminatingthe voltage noise.

Further benefits and advantages of the present invention will becomeapparent after a careful reading of the detailed description withappropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)

FIG. 1 is a perspective view of a noise suppression device in accordancewith the preferred embodiment of the present invention.

FIG. 2 is an exploded perspective view of the noise suppression deviceas shown in FIG. 1.

FIG. 3 is a top cross-sectional view of a cylinder of the noisesuppression device as shown in FIG. 2.

FIG. 4 is a front cross-sectional view of the noise suppression deviceas shown in FIG. 1.

FIG. 5 is a schematic operational view of the noise suppression devicein accordance with the preferred embodiment of the present invention.

FIG. 6 is a schematic operational view of the noise suppression devicein accordance with another preferred embodiment of the presentinvention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially to FIGS. 1-4, a noisesuppression device 1 in accordance with the preferred embodiment of thepresent invention comprises a housing 14 having an interior providedwith a chamber 141, a tube 13 mounted in the chamber 141 of the housing14, a mineral layer 142 mounted in the chamber 141 of the housing 14, anabsorbing layer 12 mounted in the tube 13, a cylinder 11 mounted in theabsorbing layer 12, and a cover 15 mounted on an opened end of thehousing 14 to close the housing 14.

The cylinder 11 is made of copper and has an outer periphery providedwith an electroplated layer 113. The electroplated layer 113 of thecylinder 11 is made of silver. The cylinder 11 has an end provided witha connecting portion 111. The connecting portion 111 of the cylinder 11has a recessed shape. The cylinder 11 has a side provided with at leastone fixing portion 112 connected to the connecting portion 111. Thefixing portion 112 of the cylinder 11 has a recessed shape. Preferably,the cylinder 11 is provided with two parallel fixing portions 112 eachconnected to the connecting portion 111.

The absorbing layer 12 has a hollow shape. The absorbing layer 12 ismounted on the outer periphery of the cylinder 11. Preferably, theabsorbing layer 12 is made of absorbent material that absorbs andprevents high-frequency and low-frequency waves.

The tube 13 is made of aluminum and has a hollow shape. The tube 13 ismounted on an outer periphery of the absorbing layer 12.

The housing 14 has an outer periphery provided with an antiskid layer144 which has a projecting or granular shape. The chamber 141 of thehousing 14 has a recessed shape. The chamber 141 of the housing 14 ismounted on an outer periphery of the tube 13 and has a peripheral wallprovided with a plurality of arcuate channels 143 surrounding andabutting the outer periphery of the tube 13 to fix the tube 13.Preferably, the arcuate channels 143 of the housing 14 are arranged inan annular manner. The mineral layer 142 is located between the housing14 and the tube 13.

The cover 15 is provided with an opening 151 connected to the connectingportion 111 of the cylinder 11. The opening 151 is extended through awhole thickness of the cover 15.

In operation, referring to FIG. 5 with reference to FIGS. 1-4, the noisesuppression device 1 is connected with a sound 2 which includes anegative electrode 21 and a separating line 212. The negative electrode21 has a pressing terminal 211. The separating line 212 has a first endaffixed to the negative electrode 21 by operation of the pressingterminal 211 and a second end affixed to the noise suppression device 1.The second end of the separating line 212 is extended through theopening 151 of the cover 15 into the connecting portion 111 of thecylinder 11 and is connected with the connecting portion 111 of thecylinder 11. A fastening member is extended through the fixing portion112 of the cylinder 11 and presses the second end of the separating line212 to affix the second end of the separating line 212 to the cylinder11. In such a manner, the cylinder 11 is made of copper which has asmall resistance coefficient to ground the sound 2, so that the sound 2can discharge and release the induced charges produced by variousradiation and electromagnetic induction. In addition, the absorbinglayer 12 is made of absorbent material that absorbs and preventshigh-frequency and low-frequency waves, while the mineral layer 142 islocated between the housing 14 and the tube 13, so that the voltagenoise produced by the sound 2 is oscillated in the noise suppressiondevice 1, so as to achieve the purpose of eliminating the voltage noise.

Alternatively, referring to FIG. 6 with reference to FIGS. 1-4, thesound 2 further includes a power supply line 22 which has a negativeelectrode 221 connected to a socket 23. The noise suppression device 1is connected with the negative electrode 221 of the power supply line 22of the sound 2.

Accordingly, the noise suppression device 1 has an excellent groundingeffect by provision of the cylinder 11 which is made of copper, so thatwhen the noise suppression device 1 is connected with the sound 2, thesound 2 is grounded and can discharge and release the induced chargesproduced by various radiation and electromagnetic induction. Inaddition, the absorbing layer 12 absorbs high-frequency andlow-frequency waves, while the mineral layer 142 is located between thehousing 14 and the tube 13, so that the voltage noise produced in theacoustic signals of the sound 2 is oscillated in the noise suppressiondevice 1, so as to achieve the purpose of eliminating the voltage noise.

Although the invention has been explained in relation to its preferredembodiment(s) as mentioned above, it is to be understood that many otherpossible modifications and variations can be made without departing fromthe scope of the present invention. It is, therefore, contemplated thatthe appended claim or claims will cover such modifications andvariations that fall within the true scope of the invention.

1. A noise suppression device comprising: a housing having an interiorprovided with a chamber; a tube mounted in the chamber of the housing; amineral layer mounted in the chamber of the housing; an absorbing layermounted in the tube; a cylinder mounted in the absorbing layer; and acover mounted on an opened end of the housing to close the housing;wherein: the cylinder has an outer periphery provided with anelectroplated layer; the cylinder has an end provided with a connectingportion; the absorbing layer is mounted on the outer periphery of thecylinder; the tube is mounted on an outer periphery of the absorbinglayer; the chamber of the housing is mounted on an outer periphery ofthe tube; and the cover is provided with an opening connected to theconnecting portion of the cylinder.
 2. The noise suppression device ofclaim 1, wherein the cylinder has a side provided with at least onefixing portion connected to the connecting portion.
 3. The noisesuppression device of claim 1, wherein the cylinder is made of copper.4. The noise suppression device of claim 1, wherein the electroplatedlayer of the cylinder is made of silver.
 5. The noise suppression deviceof claim 1, wherein the absorbing layer is made of absorbent materialthat absorbs and prevents high-frequency and low-frequency waves.
 6. Thenoise suppression device of claim 1, wherein the tube is made ofaluminum.
 7. The noise suppression device of claim 1, wherein thechamber of the housing has a peripheral wall provided with a pluralityof arcuate channels surrounding and abutting the outer periphery of thetube to fix the tube.
 8. The noise suppression device of claim 1,wherein the housing has an outer periphery provided with an antiskidlayer.